#box{
    text-align: center;
    width: 80%;
    margin: 0 auto;
    }
    #nav{
    font: 36px/2em 楷体;
    background: lightblue;
    }
    #bread{
    border-bottom: 1px black dotted;
    padding:3px;
    text-align: left;
    }
    h1{font: 36px/2em 黑体;}
    h2{width:60%;border-bottom: 1px black solid;margin:40px auto 20px;}
    a{text-decoration: none;}
    a:hover{
     text-decoration: underline;
    color:red;
    }


.banner{width:850px;height:320px}
.lastline{margin-bottom: 2em;}
.pics{
    width:350px; height:515px; margin:8px;
}
.intro{
    font:18px/1.5em 宋体;
    width:60%;
    margin:20px auto;
    text-align: left;
}